<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <script src="./node_modules/react/umd/react.development.js"></script>
    <script src="./node_modules/react-dom/umd/react-dom.development.js"></script>
    <script src="./node_modules/babel-standalone/babel.js"></script>
</head>
<body>
    <script type="text/babel">
        let oDiv = document.getElementById('app')
        ReactDOM.render(
            <h4>Hello World!</h4>,
            oDiv
            
        );
    </script>
    <div id="app">

    </div>
</body>
</html>